Problem 19
Determine what can be done to prevent the migration of beach dunes.
Problem 20
Why does sand move down the steeper side of the dune? Use a labeled diagram to support your answer.
Problem 20
Recognize Cause and Effect A researcher finds evidence of movement of ice within a glacier. Explain how this movement could occur.
Problem 21
Design three time-lapse illustrations to show how sand dunes move across land.
Problem 21
Think Critically The end of a valley glacier is at a lower elevation than its point of origin is. How does this help explain melting at its end while snow and ice still are accumulating where it originated?
Problem 22
Describe three ways to slow down the movement of sand dunes.
Problem 23
What types of damage are caused by landslides? How are people affected by landslides physically and economically?
Problem 24
Give three ways that damage from landslides can be reduced.
Problem 24
Form a Hypothesis Hypothesize why silt in loess deposits is transported farther than sand in dune deposits.
Problem 25
What is a dust storm? Where would you expect dust storms to occur? Give two safety suggestions for people caught in a dust storm.
